Metal Ducting Reducers 4" 5" 6" 8" 10" 12" 14" For Fans, Ventilation, Hydro
✔️High-quality galvanised steel duct reducer for ventilation systems. ✔️ Rust-resistant, long-lasting finish – made for UK conditions. 315mm to 355mm (12.5" to 14"). 150mm to 250mm (6" to 10"). 200mm to 250mm (8" to 10").